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Before you stands a great tower of gleaming black stone which rises from the depths of a fathomless moat and soars to within a hundred feet of the stormy grey clouds. Its pitted surface bristles with metal discs and antennae, streaked with rust, yet there are few windows and you can see but one portal.
You magnify your vision and note that your adversary’s tracks lead to a traffic-worn area on this side of the moat, directly opposite the portal. You watch this area for several minutes, and then you see two armour-clad warriors emerge from the ruins and approach it. Suddenly a semi-transparent drawbridge extends from beneath the portal. It resembles a flattened beam of solid, green-grey light, and this beam bridges the moat and provides the two warriors with the means to reach the open tower door.
You scan the great tower with your senses, and you feel sure that your opponent is lurking somewhere within. Powerless to reach him, you can only stand and watch the two warriors as they cross the moat and disappear into the portal, which slides shut behind them. At first glance this stronghold looks to be impregnable, but you have gained access to far tougher fortresses in the past, and you refuse to allow your spirits to be dampened by the daunting task of finding a way into this one.
